Improvement in rotary engines



. l v,983-1 1` PATENT@ 111870 y IIIIIIII "mi" W- juf III l IMPRoVgMENT IIN y, l UNITED. STATEsLPjATEN-r -IFFICB `Banny;iEanfemminili.

Specification fonnin part of Lettere Patenti-1o.Y 98,8 l l, datedl January -1 1, 1870l T110 au whamamay amamff4 Be' 4it known that I, M.V SNYDER, of Brady, in theeounty QfIndiana and-State of Pennsylvania, haveinvented a new and Improved RotaryEnginef; and. I'do hereby declare thatv thefollowing is a'fulhclear, and exact descrip-v tion ot the construction .ann operation of the" same, reference beinghad to the accompanytion, in which-f' l Figure.; is ahorizontal section. Fig.2 is-a vertical' section.V

ingdrawngsamaking a par: of.this.sneciii'naej Thisinventionconistsin combining Withthe hollow'revolving piston of a rOtaryteam-en- Agine, two on' more diametrical sliding valves Aplaced aftjrightanglestoeach-other, said valves bein g-made bul gin g' at theircentral parts which are within/the cylinder, said bulging parts beimg-hollowl and 'surro'ndingthe piston'lsh'aft,

.with` space enough' toiallow thev v'alves to'play back. and frthznponand transversely of said Shaft. 'the -endz of the valves projecting through lvertical orifices in theshell of the hol.

' lqwl' piston far enough to come in contact with and rece/ive end-play, in the course of their' lrevelution,from a lining of semi-annnlar shape,

t liilaccdbetween the piston amLcylin'der, which liningalso servesj to direct' tlieenterings'teani in the right direction.` In 1ti1edrawing`s, A is the cylin'ldeij'and B the hollow piston. l

, Y C is a semi-annular liningV nlaced'hetween vthe piston and cyiinder, such Llining having both endstpering inward from the cylinder,.

tween one of its tapering ends and. the inte# rior of the cylinder, into which space the inlet-valvel opens and-discharges the 'entering 'steainagainsvthe.inclined face of thelining l ,i

C, which ,directs it" toward the rig-ht,- or inthe vtrack of thelvalves b, The latter project through vertical orifices Vin :the piston-shell,l .and as...the. end.ofeachstrikeetheannularllin-1 ing the valve is thrustendwise, so that its.

opposite extremity strikesV the inside -`of the cylinder and affords surface against which the 'Steam acts; There being four or more valve ends at quadrant intervals, the entering stearn alwaysiinds av surface` against which to act nearv athan'd, and is Aprevented from flowing in the wrong direction by the inclined face of the annular lining.

Patent, is.-

1. The hollowpiston B, sliding valves vb b, rand semi-annular collar C, combined substantially as and for the purpose described. 1

2. The semiannular collar @having both ends tapering inward, and lsean to forni an inclined face at one end to directthe' enteringV stearn in the right direction, substantially as set forth. l

I Witnesseszl.

N. K. ELLSWORTH,

0114s. A. Pnr'rrr.

n and thus leaving a wedgelshaped space,`a,` be,-I

Having thus described my invention, whatl l claim asnew, and desireto secnre by Letters SAMUEL M. SNXDER. i 

